VerbalKint

I've got a 00 Si with the GReddy turbo kit, Spearco Intercooler, and AEM EMS. Right now the stock exhaust is on there. I'm getting my car tuned pretty soon (tuner is working on a preliminary fuel map), and I was considering getting an exhaust made. Here's what I was thinking: 2.5" cat-back mandrel-bent piping (welded pipes from JC Whitney), some kind of 2.5" resonator, and a Spintech Sportsman Street XL (3331XL part number) muffler. And I'd weld on a 2.5 or 3" angle-cut piece of piping on the end to make it look pretty.

How much do you think that exhaust would help? It wouldn't be too expensive... about $100 for the muffler, the piping would be about $70 or so, maybe a little less (aluminized steel, I'd paint it high-temp anti-rust paint inside and out), and then whatever a resonator costs. I want to add the resonator because I'm trying to keep sound down to a low roar; I don't want any buzzing sound at all. Just deep and mellow.

Also, anyone know of any good resonators or where to get them? Thanks guys.

*EDIT* The car is going to be tuned for 8 psi or so via a Joe P Manual Boost Controller. About what kind of HP difference should the exhaust make?

Civic Power

I would also think about upgrading the downpipe to 2.5" and also a 2.5" high flow Cat with the exhaust also.

I also have a greddy kit on my si with a 2.5 downpipe into 2.5 test pipe then into a 3" exhaust pipe to the muffler help spool faster and exhaust helps flows a lot . I run 14 psi so the 2.5 well work nice for 8psi.

immortal

with 8psi i'm sure you're gonna see 10-15whp from removing that restrictive exhaust.

VerbalKint

Civic Power:
Where did you get your 2.5" downpipe? I might want to get one too. That would be ideal.

What kind of muffler are you using as well? How does it sound?

J.R.

Get the exhaust!! I purchased my 3 inch exhaust, 3inch cat, and 3 inch muffler from kteller8 here on honda-tech. The exhaust is so nice. Try to im him, you will be happy

rainmanEK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96b18c1vic(T) &raquo;</TD></TR><TR><TD CLASS="quote">Get the exhaust!! I purchased my 3 inch exhaust, 3inch cat, and 3 inch muffler from kteller8 here on honda-tech. The exhaust is so nice. Try to im him, you will be happy </TD></TR></TABLE>

Ditto!!!

Eric

InTeGrA B18b1

watchout for the boost spike with the 3 inch on the 18g

VerbalKint

That's why I wouldn't go with the 3", only the 2.5".

FredoSP

my 2.5" everything is on, including DP and I dont see a spike at all, yeah u can go 3" but i mean since im staying under 10 psi it didnt matter.

AVATAR

3" would be ideal on externally wastegated turbos, but I wouldnt on the 18G. IM Tony from Jotech he made me a 2.5" DP when I had my GReddy kit or call them at 972-278-9744

VerbalKint

Hey, thanks for the tip. I'll give them a call on Monday or Tuesday. How much did they charge? I'm on a pretty limited budget here, and I would like to keep costs down as far as possible.

VerbalKint

I found a guy through the search function here that says he makes 2.5" dp's for the Greddy kit... at least he used to.I have a pm out to him. His name is TurboDC4, but looking back now, it seems that he's banned. Does this mean he ain't gettin my pm? Oh well. I'll see about someone else doing it.

I might just take it off on Tuesday and take it down to my muffler shop and see what they could do. Maybe. I might just say f-it and leave the stocker one on there.

Civic Power

i went to Speedway muffler in Gardena on Crenshaw past El Co College (manhattan Blvd). I running a 5zigen border muffler . Sound loud has **** at the track . But fot the street i have a silencer to keep it low key . Pm if u want to hear it so u have a idea live in Gardena

VerbalKint

Civic Power: That's cool, I live just down the street. Just got finished going to El Co, as a matter of fact. I'll check them out. How much did they charge for the downpipe? I might just weld up my own exhaust and have them make me the dp.

iam7head

DUDE!!!! you from torrance and you never heard of ES motorsports???
they make the ES oval series!!
es do custom set up with different material and size just about everythign you want.

If i were you i would have them do the downpipe and order a 2.5 test pipe from kteller8 as well as cat back piping and muffler(2.5inch).

you prolly dont need resonator, it's not going to be anymore louder anyway.

it spool up 50 times faster when i throw out my pos and get a 2.5catback(well, 2.5inch cat-less cat back) exhaust with a Apexi rs.

if you on a tight budget kteller8/mike is your best friend...lol
very nice guy and he will take care of you good

VerbalKint

Yeah, I've heard of them, I used to go to their shop back when they were on Sepulveda next to the YMCA.

About kteller8, should I just pm him on here and see what prices he quotes me for either a test pipe or a high-flow cat?

What I want the resonator for is to reduce the buzzy sound of most exhausts even further. I know I probably won't need it, but at about $20 for a 24" or so resonator, that's not too bad. And if it's aluminized steel, I can weld it in myself. In fact, I'm gonna spend all tomorrow practicing my welding so I can start ordering the piping and getting it together slowly.